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A polymer rapid repair material for bridge expansion joint repair

A technology for repairing materials and expansion joints, which is applied in the field of polymer rapid repair materials, can solve the problems of unable to meet the rapid maintenance and repair of bridge expansion joints, long concrete setting time, poor interface bonding performance, etc., and achieve good volume stability, Excellent impact resistance and excellent interfacial adhesion

Active Publication Date: 2018-06-08
甘肃路桥善建科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, C50 ordinary concrete is often used in China to construct bridge expansion and contraction, but the concrete has a long setting time, low early strength, poor bonding performance with the old concrete interface, and general impact resistance performance, which cannot meet the timely and rapid maintenance and repair of bridge expansion joints at all. basic requirements

Method used

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  • A polymer rapid repair material for bridge expansion joint repair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 A polymer rapid repair material for bridge expansion joint repair, the material is composed of dry material and liquid material. The dry material is obtained by mixing the following raw materials in parts by mass (unit: g), stirring evenly, and packaging them in a moisture-proof bag: 60 parts of SAC cement, 3 parts of mineral admixture, 0.6 part of composite admixture, and 36.4 parts of quartz sand; The liquid material is PM-1 latex which is separately packaged in a plastic barrel and accounts for 15% of the total mass of the dry material.

[0017] The application of the polymer rapid repair material for bridge expansion joint repair refers to: mixing dry material, liquid material and drinking water according to the mass ratio (g / g) of 100:15:15 and then mixing well.

[0018] in:

[0019] SAC cement refers to early-strength and rapid-hardening sulfoaluminate cement with a setting time of no more than 10 minutes, an alkalinity greater than 10.5, and a label of...

Embodiment 2

[0024] Example 2 A polymer rapid repair material for bridge expansion joint repair, the material is composed of dry material and liquid material. The dry material is obtained by mixing the following raw materials in parts by mass (unit: g), stirring evenly, and packaging them in a moisture-proof bag: 65 parts of SAC cement, 3.2 parts of mineral admixture, 0.65 parts of composite admixture, and 31.15 parts of quartz sand; The liquid material is PM-1 latex that is separately packaged in a plastic barrel and accounts for 10% of the total mass of the dry material.

[0025] The application of the polymer rapid repair material for bridge expansion joint repair refers to: mixing dry material, liquid material and drinking water at a mass ratio of 100:10:16 (g / g) and then mixing well.

[0026] in:

[0027] SAC cement, mineral admixture, and quartz sand are the same as in Example 1.

[0028] Composite admixture refers to a mixture of high-efficiency water reducer accounting for 0.45% ...

Embodiment 3

[0030] Example 3 A polymer rapid repair material for bridge expansion joint repair, the material is composed of dry material and liquid material. The dry material is obtained by mixing the following raw materials in parts by mass (unit: g), stirring evenly, and packaging them in a moisture-proof bag: 70 parts of SAC cement, 3.5 parts of mineral admixture, 0.7 part of composite admixture, and 25.8 parts of quartz sand; The liquid material is PM-1 latex that is separately packaged in a plastic bucket and accounts for 20% of the total mass of the dry material.

[0031] The application of the polymer rapid repair material for bridge expansion joint repair refers to: mixing dry material, liquid material and drinking water at a mass ratio of 100:20:10 (g / g) and then mixing well.

[0032] in:

[0033] SAC cement, mineral admixture, and quartz sand are the same as in Example 1.

[0034] Composite admixture refers to a mixture of high-efficiency water reducer accounting for 0.5% of t...

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Abstract

The invention relates to a polymer quick repairing material for repairing bridge expansion joints, wherein the material is composed of two components: a dry material and a liquid material; the dry material is obtained by mixing the following raw materials in parts by mass, then stirring evenly and encapsulating in moisture-proof bags: 60-70 parts of SAC cement, 3-3.5 parts of a mineral admixture, 0.6-0.7 part of a compound additive, and 25.8-36.4 parts of quartz sand; the liquid material is a PM-1 latex individually encapsulated in a plastic barrel and accounting for 10-20% of the total mass of the dry material. The polymer quick repairing material has the advantages of high early strength, excellent interface bonding performance, good volume stability and excellent shock resistance.

Description

technical field [0001] The invention relates to a quick repair material, in particular to a polymer quick repair material used for bridge expansion joint repair. Background technique [0002] The bridge expansion joint is an important component of the bridge structure. It directly bears the repeated impact of the wheel load. It is the most vulnerable part of the bridge structure and is difficult to repair. The damage of the bridge expansion joint will cause the bridge head to jump and the driving noise will increase. , expansion joint leakage, rubber strip corrosion and other diseases have a great impact on the performance of the bridge, seriously affecting the life of the bridge and driving safety. Timely and rapid maintenance and repair of the bridge expansion joints in use is an indispensable link to ensure the stability of the bridge structure and ensure the safety of driving. [0003] At present, C50 ordinary concrete is often used in China to construct bridge expansio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B111/72
CPCC04B28/06C04B2111/72C04B2201/05C04B14/06C04B18/08C04B22/124C04B22/085C04B2103/302C04B24/06C04B24/18C04B22/0013C04B24/2676C04B2103/50
Inventor 魏永锋刘涛张星宇窦晖
Owner 甘肃路桥善建科技有限公司